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Finding the Fourth Proportional to 50,981.60, 76,472.40 and 48,940.40

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Solution

The fourth proportional to 50,981.60, 76,472.40 and 48,940.40 is: 73,410.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,981.60 : 76,472.40 = 48,940.40 : x
  2. Step 2: Convert to fraction form
    50,981.60/76,472.40 = 48,940.40/x
  3. Step 3: Cross multiply
    50,981.60x = 76,472.40 × 48,940.40
  4. Step 4: Simplify right side
    50,981.60x = 3,742,589,844.96
  5. Step 5: Solve for x
    x = 3,742,589,844.96/50,981.60
  6. Step 6: Final answer
    x = 73,410.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.